Feeler stop-motion.



C. W. ASMAN. FEHLER sToPMoTIoN.

APPLICATION FILED 111111.16, 1914.

Patented July 14,1914.

2 SHEETS-SHEET 1.

G'. W. ASMAN. FEELER STOP MOTION. APPIJGATION FILED JAN. 16, 1914.

1,103,340; Patented July 14,1914.

2 SHEETS-SHEET 2.

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NTED STATES PATENT GFFICE.

CHARLES V7. ASMAN, OF KNOXVILLE, TENNESSEE, ASSIG-NOR TO DRAPER COMPANY, 0F HOPEDALE, MASSACHUSETTS, A CORPORATION 0F MAINE;

FEELER STOP-MOTION.

Specification of Letters Patent.

Patented July 14', 1914.

Application filed January 16, 1914. Serial No. 812,565.

To all 'whom t may concern Be it known that l, CHARLES W. ASMAN, a citizen of the United States, and resident of Knoxville, county of Knox, State of Tennessee, have invented an Improvement in Feeler Stop-Motions, of which the following description, in connection with the accompanying drawing, is 'a specification, like characters on the drawing representing like parts.

This invention has for its object to provide for automatically stopping an automatic filling replenishing loom upon the failure of the filling replenishing means to effect a transfer after the indication of substantial exhaustion of the filling in the running shuttle.

in an automatic filling replenishing loom, such, for example, as theL well known Northrop type'of loom, the supply of fresh filling carriers is mounted at one side of the loom and feeler mechanism is provided usually at the other side of the loom actuated upon the exhaustion of the filling in the running shuttle to a predetermined degree. Upon the actuation of the feeler mechanism the transfer mechanism is set into operation to transfer a fresh filling carrier to the lay when the filling carrier to be abandoned reaches the position for transfer. In the Northrop type of loom the filling carrier takes the form of the usual bobbin and the fresh bobbin is transferred to the shuttle knocking out the exhausted bobbin when the shuttle after indication of filling exhaustion has been boxed beneath the hoppercontainin'g the supply of fresh bobbins.

It not infrequently happens that after substantial exhaustion of the filling in the running shuttle has been indicated by the v feeler, and the parts are set for transfer and a transfer of a fresh filling carrier to the shuttle should be made, that the shuttle is not properly boxed at the transfer side of. Lthe loom, and, consequently, throughthe action of some safety device such as the usualy shuttle feeler the transferring mechanism is prevented from effecting a transfer and the shuttle is pickedl back to the opposite side of the loom. rlhe feeler mechanismagain detectingsubstantial or complete exhaustion;

of the filling in the running shuttle will again set in operationA the transfer mechanism and the operation will be repeated so long as the shuttle continueslto be improperly boxed in position for transfer, resulting, of course, in the laying of a loose end in the shed which will usually be sufficient to prevent detection of filling absence by the usual weft fork. Thus, imperfect cloth will result requiring the pickingout of the faulty portion before the loom can be restarted with the consequent loss of time.

This invention provides means which will automaticallystop the loom upon the failure of the filling replenishing means to eflfect a transfer, and, in the preferred form of the invention, as it is particularly adapted yto take care of the failure to effect a transfer because of an improperly boxed shuttle, the means for stopping the loom is actuated upon a subsequent presentation to vthe detecting means of the filling carrier,

the complete or partial exhaustion of which has once been detected thereby.

LThe nature of the invention will appear more fully fromthe accompanying description and drawings and will be particularly pointed out in the claims.

The drawings show a loom of the Northrop type such as is illustrated, for example, in the patent to Vood and Northrop No. 789,472 granted `May 9, 1905, with parts adapted 'for that type of loom and embodying the invention herein attached thereto.

In the drawings, Figure l is a top plan :View of the loom broken away centrally and with only so much thereof illustrated' as is necessary to a disclosure of the present invention; Fig. 2 is an enlarged plan view of the left hand or feeler indicating side of the loom showing the parts particularly concerned with the invention; Fig. 3 is a view in transverse cross-section of the breast beam andconnected parts adjacent the latch and vibrating actuator; Fig. 4 is a view similar to Fig. 3 showing the parts in a different position; Fig. 5 is a view from the opposite side of a portion of the parts shown in Figs. 3 and 4.

The loom which is herein illustrated in .connection with this embodiment of the invention is of such 'a familiar type' and is so Ifully illustrated and described in the patent to Wood and Northrop mentioned that any detailed description thereof is unnecessary to an understanding of the present invention.

The lay is shown at 1, the breast beam at 2, the shuttle boxes at 3 and 4 at 'the opposite sides of the loom. The shuttle 5 is shown boxed at the left hand or feeling side of the loom. rl"he hopper or feeder G is mounted on the breast beam at the right hand side of the loom carrying a supply of filled bobbins or filling carriers 7 which at the proper time are automatically transferred to the shuttle boxed at the right hand side of the loom by the mechanism such as illustrated which will be briefly described because it is made use of in the present em-v bodiment of the invention.

A stand 8 is mounted at the left hand end of the breast beam of the loom and carries thereon a movable carrier 9 yieldingly offset toward the lay. This carrier is provided with an adjustable bunter 10 adapted to contact with the side wall. of the shuttle, and also supporting a feeler 11 adapted to enter the wall of the shuttleand contact with the filling. Anactuator 12 is pivot-- ally mounted on the carrier and engages the feeler 11. So long as the filling has'not become exhausted to the required extent the feeler will be limited in its movement thereby and at each beat-up will raise the free or forward end of the actuator,l but when: the diminution in diameter of the filling permits thev feeler to extend so far into the shuttle that there can be no lilling induced movement of the feeler, the actuator will not be raised,` and as the carrier is moved-back by the contact of the bunter 10 with the wall of' the shuttle will strike against a lever 13 pivoted at 1li, and known as the controller. The controller 13 will then be swung forwardly riding: in the cam slot 15 of a transm mitter lever 16 transversely fulcrumed or pivoted at 17. rlhis will cause the cam slotted end of the transmitter to move downwardly and the opposite end 18 tomove upwardly. kThe transmitter lever extends beneath, or as shown, into a sllot 19 in a latch 20, rigidly secured to the controlling rock shaft 21 and overhangina the breast beam. The outer end of the latch 2Q is normally out of the path of a vibrating actuator such as theweft hammer 22, but whenthe latch is 1 raised by the transmitter it is brought into the path of the vibrating actuator 22, and is swung forwardly rocking thev controller rock shaft 21. This shaft extends along to the transfer side 0f the loom,` and when rocked raises a dog connected with the pivoted tra-nsferrer 23 into the path of af bunter on the lay so as to cause the operation of the transferrer when the lay beatsr up, all the usual manne-r. The controller rock shaft also when rocked brings into operative poi sition a shuttle feeler 24 which when the lay beats up feels for the shuttle at the transfer end of the loom, and if it is improperly boxed prevents the operation of the trans ferrer or of the filling replenishing mechanism. The construction and operation of the shuttle feeler is not speciiically involved in this invention and may be of any well known character, such for example, as shown in the patentv to C. H. Draper, No. 683,423, granted September 24, 1901.

Stopping of the loom is effected by the .usual shipper 25, shown in Figs. 1 and 2, `held by the notched plate 26 in running position, but which when pushed or swung.v

rearwardly will be automatically thrown to the left stopping the loom in the usual and familiar manner. The automatic stopping of t-he loom is effected upon failure or abv sence of filling in the shed opposite and by a weft' fork 27 which upon the occurrence of such failure or absence of the filling acts in a familiar manner to swing the knockoff lever 28 about its pivot 29 to release the shipper 25, and thus stop the loom. ,n

rlhe mechanism thus far described is all well known and familiar, and is only sulii` ciently illustrated herein to make clear the construction and operation of the particular embodiment disclosed herein as a preferred form of the invention.

rlhe mechanism which when added to that already described presents a preferred embodiment of the present invention, land secures in a preferred manner the results already set forth will now be described.

A hook member is so mounted as to move backward and forward with the latch andV to have an up and down movementv kwith respect thereto.' Thisl is secured in the form illustrated by mounting rigidly Aupon the' controller rock shaft 21 an upright arm 30 and pivoting thereto at 31 the hook member 32 which extends parallel with the latch 20 and is provided at its rearward end with a hook adapted toV catch on the rear edge of the knock-od lever 28. The hook member 32 is provided above the knock-off lever with a pivoted stud 33 upon whichis pivotedr a spiral cam 34 and a ratchetl wheel 35 integral or rigid with the camuv The ratchet wheel is mutilated lacking one or two teeth as illustrated. A pawl mechanism is carried by the hook member for coperating with yand rotating the ratchet and its at-r tached cam. AThis pawl mechanism as shown comprises a pawl carrier lever 36 fulcrumed on the hook member and provided at its uperl end with a pawl 37Hen- The compression coilV gaging the ratchet. spring 38 attached to the lower endof the lever 36 and to the forward end of the hook member serves to maintain the pawl normally retracted. e

4A pawl actuator shown asl a' rod 391s Fig. 3 of the drawings.

pivoted to the lower end of the lever 36, extends rearwardly substantially parallel with the latch 2O and is provided with an adjustable abutment 40 mounted thereon. A stop pin 4l on the hook member limits the rearward movement of the pawl under the influence of the spring 38. lt will thus be seen that when the pawl actuator is moved forwardly the pawl will be given its actuating movement. This movement of the actuator is secured in the construction illustrated from the vibrating actuator or weft hammer 22, which for that purpose is provided with an arm 42 extended upwardly and embracing the rod 39 so as to supportthe rearward end of the rod, and, when the weft hammer is carried forwardly, to contact with the abutment 40 and move the pawl actuator forwardly. f

A leaf spring 43 is secured to thel side of the hook member 32 and bears at its free end against the spiral cam 34, thus serving as a detent.

The operation of the mechanism will now be apparent. rlhe parts are normally in the position shown in Figs. 4 and 5 with the high partl of the spiral cam 34 resting on the knock-off lever 28, thus holding the hook member 32 out of engagement therewith. In this position the pawl is on the mutilated part of the ratchet so that as the arm 42 carried by the vweft hammer strikes the abutment l40 moving the pawl actuator there is no movement of the ratchet, and the parts remain in the position illustrated. llVhen, however, the filling carrier, such as the bobbin in the shuttle, has reached such a degree of exhaustion as to prevent a filling induced movement of the feeler and consequent-ly, through the connections already described, to cause the latch 20 to be raised into the path of the weft hammer 22, then the controller rock shaft 21 will be rocked carrying with it the arm 30 and hook member 32. As these parts are swung forwardly the fiat part of the spiral cam 34 will drop against the edge of the knock-off lever 28, thus allowing the hook member as the parts move backwardly to drop down and catch over the opposite edge of the knock-off lever, the spiral cam being slightly rotated to bring "the pawl out of the mutilated portion of fthe latch onto the toothed portion, and the parts thereupon take the position shown in if the transfer of a fresh filling carrier takes place in the usual manner, and there is no further indication of filling exhaustion or replenishment the arm 42 striking against the abutment 40 at each beat-up of the lay will cause the pawl 37 to ratchet the spiral cam 34 substantially one revolution, thus restoring the cam to the position shown in Figs. 3 and 4, and raising the hook member 32 from engag-ement with the knock-off lever. If, however, there is instead a succeeding indication of filling exhaustion or replenishment, then the latch 20` being brought again into the ypath o-f the weft hammer will again be swung forwardly, and this time, the hook member 32 being in engagement with the knock-od lever 2S, will carry forward with lit the knock-off lever, thus stopping the loom.

Having fully described my invention, what l claim as new and desire to secure by Letters Patent is:

l. In an automatic filling replenishing loom, loo-m stoppingmechanism,a controller rock shaft, a vibrating actuator, a latch mounted on the controller rock shaft and normally out of the path of said actuator, a filling feeler and connections to said latch to place the latch in the path of said actuator upon the detection by the feeler of the required exhaustion of the filling, an arm mounted on the controller rock shaft, a hook member pivoted on said arm, a spiral cam journaled on said hook, a lever connected to the loom stopping mechanism and extended beneath said cam whereby the cam normally holds the said hook out of engagement with said lever, a mutilated ratchet connected to said spiral cam, a pawl cooperating with said ratchet mounted on said hook member, operative connectionsbetween said pawl and said vibrating actuator whereby upon the detection of the required filling exhaustion the spiral cam will be dropped into engagement with the knock-off lever, the pawl will be caused to engage the ratchet and the hook member will be dropped into engagement with the knock-off lever to cause the stopping of the loom upon a successive detection of filling exhaustion.

2. In an automatic filling replenishing loom, loom stopping mechanism, a vibrating actuator, a latch normally out of the path of said actuator but which when brought into the path thereof acts to control the filling replenishment, a filling feeler and connections to said latch to place the latch in the path of said actuator upon the detection by the feeler of the required exhaustion of the filling, a hook member mounted to move with the latch and pivoted to move with respect to the latch, a spiral cam journaled on said hook member above a part of the loom stopping mechanism whereby the cam normally holds the said hook` member out of engagement with said part, a mutilated ratchet connected to said spiral cam, a pawl cooperating with said ratchet mounted on said hook member, operative connections between said pawl and said vibrating actuator, whereby upon the detection of the required lling exhaustion the spiral cam will be dropped into engagement with the lQQ part of the loom stopping mechameno,V the In testimony whereof, have signed my pawl Will be caused to engage the ratchet, name to this, speocaton, in the presence of and the hook member will be dropped into two subscribing'- Witnesses. engagement With the part of the loom stopvGl-ARLES W. ASMAN.`

5 ping mechanism to cause the stopping of Witnesses;

the loom upon, a Successive detection of J, S. GALLQWAY, llngexhaustion. Y f J, M, MOORE.

v Copies of this patent may be obtained i 'Washingtom D.. G.

or ve cents* each, by adressing' the Gomvmisoner of Patents, 

